TEST=mjsunit/asm
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/728103007

Cr-Commit-Position: refs/heads/master@{#25386}

Also add some debug code to verify correct zero extension of 32-bit
moves.

TEST=mjsunit/asm
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/736623002

Cr-Commit-Position: refs/heads/master@{#25385}

R=rossberg@chromium.org
BUG=v8:3076
LOG=n

Review URL: https://codereview.chromium.org/733483003

Cr-Commit-Position: refs/heads/master@{#25384}

We add a new ScopeType, ScopeType.Script. The scope with
ScopeType.Script is always present in the scope chain (ScopeIterator
fakes it if neededi - i.e. if ScriptContext for a script has not been
allocated since that script has no lexical declarations).
ScriptScope reflects ScriptContextTable.

R=yurys@chromium.org,yangguo@chromium.org
BUG=v8:3690
LOG=N

Review URL: https://codereview.chromium.org/726643002

Cr-Commit-Position: refs/heads/master@{#25383}

R=bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/727373002

Cr-Commit-Position: refs/heads/master@{#25382}

BUG=

Review URL: https://codereview.chromium.org/714413004

Cr-Commit-Position: refs/heads/master@{#25381}

R=yangguo@chromium.org, vsevik
LOG=Y

Committed: https://code.google.com/p/v8/source/detail?r=d5f5d38f73f43eba9658d91ffbe511af8c340d78

Review URL: https://codereview.chromium.org/710273002

Cr-Commit-Position: refs/heads/master@{#25380}

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/727323002

Cr-Commit-Position: refs/heads/master@{#25379}

Review URL: https://codereview.chromium.org/733023003

Cr-Commit-Position: refs/heads/master@{#25378}

Don't use the generic algorithm, but instead start going into the
direction of ControlReducer, using a stack plus a revisit queue to
not miss any more possibilities for reductions anymore.

TEST=cctest,unittests
R=dcarney@chromium.org

Committed: https://chromium.googlesource.com/v8/v8/+/f047507370634155113d78685372630a230613cf

Committed: https://chromium.googlesource.com/v8/v8/+/6e148989a4227a5290a7f8ca72c71f5740870afe

Review URL: https://codereview.chromium.org/726513002

Cr-Commit-Position: refs/heads/master@{#25377}

Now we actually implement it the way it is meant to be, that is:

  JSToBoolean(Phi(x1,...,xn):primitive)
    => Phi(JSToBoolean(x1),...,JSToBoolean(xn)):boolean

This also fixes the endless recursion within JSTypedLowering when
the GraphReducer does all possible reductions instead of using the
generic algorithm.

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/730043002

Cr-Commit-Position: refs/heads/master@{#25376}

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/734593003

Cr-Commit-Position: refs/heads/master@{#25375}

R=bmeurer@chromium.org
TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/733783003

Cr-Commit-Position: refs/heads/master@{#25374}

Preparation for supporting more addressing modes in instruction selection.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/729853005

Cr-Commit-Position: refs/heads/master@{#25373}

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/734633002

Cr-Commit-Position: refs/heads/master@{#25372}

BUG=chromium:433766
LOG=n
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/731953003

Cr-Commit-Position: refs/heads/master@{#25371}

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/726363002

Cr-Commit-Position: refs/heads/master@{#25370}

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/732473002

Cr-Commit-Position: refs/heads/master@{#25369}

With Int32Add we lose the int/uint distinction, so later, in simplified lowering we can make a wrong decision. E.g., see the attached test case, where we lower NumberAdd -> Int32Add because inputs are Uint32, but during simplified lowering we change the inputs to Int32, so we get a wrong result.

Simplified lowering will lower the NumberAdd operations anyway, so we should lose performance.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/721723004

Cr-Commit-Position: refs/heads/master@{#25368}

Review URL: https://codereview.chromium.org/707463002

Cr-Commit-Position: refs/heads/master@{#25367}

If a class extends another class and it doesn't provide a constructor,
one is created for them. We therefore need to ensure that stepping into
the constructor steps into the super class constructor.

BUG=v8:3674
LOG=Y
R=dslomov@chromium.org, aandrey , yurys

Review URL: https://codereview.chromium.org/725983002

Cr-Commit-Position: refs/heads/master@{#25366}

BUG=chromium:433273
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/728983004

Cr-Commit-Position: refs/heads/master@{#25365}

BUG=v8:3684
LOG=n

Review URL: https://codereview.chromium.org/726773002

Cr-Commit-Position: refs/heads/master@{#25364}

This requires putting the original loop's body inside an inner for loop (with
the same labels as the original loop) and re-binding the temp variables in its
"next" expression. A second flag is added to the desugared code to ensure the
loop body executes at most once per loop.

BUG=v8:3683
LOG=y

Review URL: https://codereview.chromium.org/720863002

Cr-Commit-Position: refs/heads/master@{#25363}

BUG=v8:3230

Review URL: https://codereview.chromium.org/663683006

Cr-Commit-Position: refs/heads/master@{#25362}

BUG=

Review URL: https://codereview.chromium.org/727733002

Cr-Commit-Position: refs/heads/master@{#25361}

Named class declarations and class expression have a const binding for
the name that is in TDZ for the extends expression.

BUG=v8:3330
LOG=Y
R=dslomov@chromium.org, adamk

Review URL: https://codereview.chromium.org/722793005

Cr-Commit-Position: refs/heads/master@{#25360}

R=rossberg@chromium.org, titzer@chromium.org
TEST=unittests/JSTypedLoweringTest.JSStrictEqualWithTheHole

Review URL: https://codereview.chromium.org/722223003

Cr-Commit-Position: refs/heads/master@{#25359}

R=aandrey@chromium.org, rossberg@chromium.org, yurys@chromium.org
BUG=v8:3690
LOG=N

Review URL: https://codereview.chromium.org/732543002

Cr-Commit-Position: refs/heads/master@{#25358}

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/679943004

Cr-Commit-Position: refs/heads/master@{#25357}

This reverts commit 6e148989 for
breaking Massive/Embenchen.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/727743002

Cr-Commit-Position: refs/heads/master@{#25356}

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/718393004

Cr-Commit-Position: refs/heads/master@{#25355}

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/726823002

Cr-Commit-Position: refs/heads/master@{#25354}

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/724133004

Cr-Commit-Position: refs/heads/master@{#25353}

Revert of Whitespace change to test CQ. (patchset #1 id:1 of https://codereview.chromium.org/725873002/)

Reason for revert:
Test revert.

Original issue's description:
> Whitespace change to test CQ.
>
> TBR=machenbach@chromium.org
>
> Committed: https://chromium.googlesource.com/v8/v8/+/42340bdfbd8b4f002257e55464f2e0b81c6ea424

TBR=
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/725893002

Cr-Commit-Position: refs/heads/master@{#25352}

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/725873002

Cr-Commit-Position: refs/heads/master@{#25351}

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/727693002

Cr-Commit-Position: refs/heads/master@{#25350}

BUG=chromium:410721
LOG=n
TBR=tandrii@chromium.org
TEST=script_test.py

Review URL: https://codereview.chromium.org/725073002

Cr-Commit-Position: refs/heads/master@{#25349}

R=mvstanton@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/670953003

Cr-Commit-Position: refs/heads/master@{#25348}

Drive-by-Fix: minint % 0 was broken on ARM, but we didn't notice because
there was no test covering that case...

TEST=msjunit
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/727673002

Cr-Commit-Position: refs/heads/master@{#25347}